Technician Support: Phase II for the Isotope Geochemistry Laboratory, Department of Geology, University of Maryland at College Park

9711377沃克这笔赠款提供100,000美元作为为期两年的部分工资支持，供一名技术人员监督操作和维护、培训新用户并利用马里兰大学同位素地球化学实验室的热电离质谱仪(TIMS)开发新的地球化学技术。这是IF/EAR计划下的第二阶段技术支持赠款。在这一技术职位上，一位高素质的科学家索尼娅·埃斯佩兰卡博士的持续支持是完全有保证的，她的额外专业知识为该小组提供了大量额外的科学动力，使其能够进一步开发用于Re/Os系统中锂同位素和Os同位素分析的困难的化学分离和质谱学技术。Re/Os系统技术的发展已经为我们理解地球早期的地球化学分异做出了重大贡献，锂同位素作为岩浆、热液和地下水系统中流体流动示踪剂的新发展具有广阔的前景。最后，今年夏天增加了一位新的教员克里斯蒂娜·盖洛普博士，她在铀系列测年和珊瑚骨架中作为古气候指标的微量元素分析方面带来了新的专业知识。***

9711377 Walker This grant provides $100,000 as two-years partial salary support for a technician to oversee operations and maintenance, train new users and develop new geochemical techniques utilizing the thermal ionization mass spectrometers (TIMS) in the Isotope Geochemistry Lab (IGL) at the University of Maryland. This is a Phase II grant for technical support under the IF/EAR program Continued support of a highly qualified scientist, Dr. Sonia Esperanca, in this technical position is fully warranted and her added expertise provides this group with a great deal of added scientific motivation for further development of difficult chemical separation and mass spectrometric techniques for the analysis of lithium isotopes and osmium isotopes in the Re/Os system. The development of techniques in the Re/Os system has already brought significant contributions to our understanding of the early geochemical differentiation of the Earth and new developments in the use of lithium isotopes as tracers of fluid flow in magmatic, hydrothermal and groundwater systems holds future promise. Lastly, the addition of a new faculty member this summer, Dr Christina Gallup, brings new expertise in uranium series dating and trace element analyses in coral skeletons as paleoclimatic indicators. ***